Puzzle clock



FIG. 1 shows a front perspective view of my design for a puzzle clock;

FIG. 2 shows a front view thereof;

FIG. 3 shows a rear view thereof;

FIG. 4 shows a side view thereof;

FIG. 5 shows an opposite side view thereof;

FIG. 6 shows a top view thereof;

FIG. 7 shows a bottom view thereof; and,

FIG. 8 shows a front perspective view thereof, with the puzzle pieces separated.

The portions shown in dotted lines show environmental structure only and form no part of the claimed invention. 

The ornamental design for a puzzle clock, as shown and described. 